Giving ice cream to a dog could be dangerous and toxic to the animal’s system. Experts advise that it should never be done.

Britain's animal welfare charity, the RSPCA, said in a statement: "It is lovely that Prince George is trying to help keep his family dog, Lupo, cool in these high temperatures. We would advise people to be cautious when giving their dogs food meant for human consumption as some items, like chocolate, can be highly toxic to dogs and dairy items can be difficult for them to digest.

Other photos were not controversial at all. The pictures were taken by Matt Porteous at the royal couple’s home in Norfolk, England, last month.

Porteous said of the experience: “I really enjoyed the opportunity to take these photographs of Prince George. It was a very relaxed and enjoyable atmosphere. I'm honored that they have decided to share these images with the public to mark his third birthday."

A spokesman for Kensington Palace said: "The Duke and Duchess hope that people will enjoy seeing these new photographs. They would like to thank everyone for all the lovely messages they have received as Prince George celebrates his third birthday."

There has been no response from the Royal Family about the ice cream controversy.